78680258786523 has 8 divisors (see below), whose sum is σ = 104963201873728. Its totient is φ = 52425410778504.

The previous prime is 78680258786513. The next prime is 78680258786539. The reversal of 78680258786523 is 32568785208687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78680258786523 - 2⁵ = 78680258786491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78680258786513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7023763261 + ... + 7023774462.

It is an arithmetic number, because the mean of its divisors is an integer number (13120400234216).

Almost surely, 2^{78680258786523} is an apocalyptic number.

78680258786523 is a deficient number, since it is larger than the sum of its proper divisors (26282943087205).

78680258786523 is a wasteful number, since it uses less digits than its factorization.

78680258786523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14047539593.

The product of its (nonzero) digits is 2167603200, while the sum is 75.

The spelling of 78680258786523 in words is "seventy-eight trillion, six hundred eighty billion, two hundred fifty-eight million, seven hundred eighty-six thousand, five hundred twenty-three".